Amino acid dipepetide frequency for Rhodanobacter sp. FW510-R10

Apart from single amino acid frequencies one can also calculate so called amino acid dipeptide frequency.

There is 400 possibilites (441 if we consider Xaa as additional 21st amino acid representing all non-standard or unknown amino acids). Thus, if the dipeptides would be present randomly in proteins each amino acid dipeptide should be present with 0.25% frequency. As it is not the case in the nature, for better visablity all more than expected dipepetides are marked by red, and those which are underrepresented are marked by blue in the table.

All values are presented as per milles (‰), therefore need to be multiplied by 10-3.

For more information see sequence space article on Wikipedia.

AlaCysAspGluPheGlyHisIleLysLeuMetAsnProGlnArgSerThrValTrpTyrXaa
Ala
18.938AlaAla: 18.938 ± 0.221
1.299AlaCys: 1.299 ± 0.037
7.151AlaAsp: 7.151 ± 0.088
6.853AlaGlu: 6.853 ± 0.095
4.009AlaPhe: 4.009 ± 0.064
11.729AlaGly: 11.729 ± 0.143
2.885AlaHis: 2.885 ± 0.049
5.571AlaIle: 5.571 ± 0.08
3.68AlaLys: 3.68 ± 0.072
15.618AlaLeu: 15.618 ± 0.177
3.454AlaMet: 3.454 ± 0.056
2.97AlaAsn: 2.97 ± 0.06
6.283AlaPro: 6.283 ± 0.091
5.291AlaGln: 5.291 ± 0.087
9.452AlaArg: 9.452 ± 0.119
6.442AlaSer: 6.442 ± 0.085
6.16AlaThr: 6.16 ± 0.085
8.931AlaVal: 8.931 ± 0.1
2.114AlaTrp: 2.114 ± 0.051
2.58AlaTyr: 2.58 ± 0.051
0.0AlaXaa: 0.0 ± 0.0
Cys
1.059CysAla: 1.059 ± 0.031
0.13CysCys: 0.13 ± 0.011
0.493CysAsp: 0.493 ± 0.023
0.466CysGlu: 0.466 ± 0.021
0.281CysPhe: 0.281 ± 0.018
0.919CysGly: 0.919 ± 0.032
0.281CysHis: 0.281 ± 0.02
0.329CysIle: 0.329 ± 0.018
0.194CysLys: 0.194 ± 0.015
0.861CysLeu: 0.861 ± 0.031
0.179CysMet: 0.179 ± 0.013
0.223CysAsn: 0.223 ± 0.015
0.449CysPro: 0.449 ± 0.021
0.207CysGln: 0.207 ± 0.013
0.667CysArg: 0.667 ± 0.025
0.438CysSer: 0.438 ± 0.022
0.437CysThr: 0.437 ± 0.019
0.671CysVal: 0.671 ± 0.028
0.126CysTrp: 0.126 ± 0.01
0.238CysTyr: 0.238 ± 0.015
0.0CysXaa: 0.0 ± 0.0
Asp
7.987AspAla: 7.987 ± 0.092
0.456AspCys: 0.456 ± 0.022
3.394AspAsp: 3.394 ± 0.081
3.251AspGlu: 3.251 ± 0.057
2.075AspPhe: 2.075 ± 0.042
5.56AspGly: 5.56 ± 0.097
1.271AspHis: 1.271 ± 0.034
2.328AspIle: 2.328 ± 0.056
1.696AspLys: 1.696 ± 0.047
5.289AspLeu: 5.289 ± 0.069
1.076AspMet: 1.076 ± 0.032
1.365AspAsn: 1.365 ± 0.045
3.415AspPro: 3.415 ± 0.066
1.715AspGln: 1.715 ± 0.037
3.792AspArg: 3.792 ± 0.057
2.495AspSer: 2.495 ± 0.051
2.697AspThr: 2.697 ± 0.066
4.144AspVal: 4.144 ± 0.069
1.049AspTrp: 1.049 ± 0.032
1.725AspTyr: 1.725 ± 0.043
0.0AspXaa: 0.0 ± 0.0
Glu
6.603GluAla: 6.603 ± 0.092
0.362GluCys: 0.362 ± 0.02
2.098GluAsp: 2.098 ± 0.049
2.187GluGlu: 2.187 ± 0.06
1.608GluPhe: 1.608 ± 0.043
3.473GluGly: 3.473 ± 0.065
1.606GluHis: 1.606 ± 0.045
2.231GluIle: 2.231 ± 0.053
1.557GluLys: 1.557 ± 0.047
6.411GluLeu: 6.411 ± 0.098
1.021GluMet: 1.021 ± 0.031
1.141GluAsn: 1.141 ± 0.034
2.472GluPro: 2.472 ± 0.047
2.76GluGln: 2.76 ± 0.052
4.869GluArg: 4.869 ± 0.083
2.287GluSer: 2.287 ± 0.049
2.312GluThr: 2.312 ± 0.046
3.769GluVal: 3.769 ± 0.063
0.671GluTrp: 0.671 ± 0.025
1.091GluTyr: 1.091 ± 0.036
0.0GluXaa: 0.0 ± 0.0
Phe
4.308PheAla: 4.308 ± 0.068
0.322PheCys: 0.322 ± 0.018
2.495PheAsp: 2.495 ± 0.049
1.774PheGlu: 1.774 ± 0.044
1.212PhePhe: 1.212 ± 0.039
3.43PheGly: 3.43 ± 0.061
0.837PheHis: 0.837 ± 0.028
1.306PheIle: 1.306 ± 0.037
0.927PheLys: 0.927 ± 0.032
2.884PheLeu: 2.884 ± 0.069
0.697PheMet: 0.697 ± 0.026
1.047PheAsn: 1.047 ± 0.031
1.495PhePro: 1.495 ± 0.039
0.977PheGln: 0.977 ± 0.03
2.192PheArg: 2.192 ± 0.051
1.853PheSer: 1.853 ± 0.043
1.716PheThr: 1.716 ± 0.043
2.639PheVal: 2.639 ± 0.051
0.472PheTrp: 0.472 ± 0.022
0.895PheTyr: 0.895 ± 0.03
0.0PheXaa: 0.0 ± 0.0
Gly
9.284GlyAla: 9.284 ± 0.097
0.871GlyCys: 0.871 ± 0.027
4.735GlyAsp: 4.735 ± 0.086
4.714GlyGlu: 4.714 ± 0.075
3.257GlyPhe: 3.257 ± 0.063
7.185GlyGly: 7.185 ± 0.113
2.338GlyHis: 2.338 ± 0.047
4.044GlyIle: 4.044 ± 0.061
3.295GlyLys: 3.295 ± 0.066
8.658GlyLeu: 8.658 ± 0.085
2.45GlyMet: 2.45 ± 0.051
2.517GlyAsn: 2.517 ± 0.074
2.958GlyPro: 2.958 ± 0.054
3.194GlyGln: 3.194 ± 0.055
6.111GlyArg: 6.111 ± 0.081
4.989GlySer: 4.989 ± 0.082
4.357GlyThr: 4.357 ± 0.072
6.556GlyVal: 6.556 ± 0.087
1.747GlyTrp: 1.747 ± 0.047
2.598GlyTyr: 2.598 ± 0.056
0.0GlyXaa: 0.0 ± 0.0
His
3.572HisAla: 3.572 ± 0.056
0.268HisCys: 0.268 ± 0.017
1.553HisAsp: 1.553 ± 0.034
1.311HisGlu: 1.311 ± 0.031
0.92HisPhe: 0.92 ± 0.032
2.674HisGly: 2.674 ± 0.054
0.67HisHis: 0.67 ± 0.029
0.858HisIle: 0.858 ± 0.026
0.535HisLys: 0.535 ± 0.023
2.421HisLeu: 2.421 ± 0.049
0.528HisMet: 0.528 ± 0.023
0.5HisAsn: 0.5 ± 0.02
1.562HisPro: 1.562 ± 0.039
0.812HisGln: 0.812 ± 0.025
1.718HisArg: 1.718 ± 0.044
1.061HisSer: 1.061 ± 0.027
1.094HisThr: 1.094 ± 0.034
1.757HisVal: 1.757 ± 0.038
0.478HisTrp: 0.478 ± 0.022
0.777HisTyr: 0.777 ± 0.026
0.0HisXaa: 0.0 ± 0.0
Ile
6.043IleAla: 6.043 ± 0.073
0.354IleCys: 0.354 ± 0.02
3.236IleAsp: 3.236 ± 0.058
2.893IleGlu: 2.893 ± 0.06
1.127IlePhe: 1.127 ± 0.036
4.442IleGly: 4.442 ± 0.079
0.949IleHis: 0.949 ± 0.028
1.359IleIle: 1.359 ± 0.04
1.175IleLys: 1.175 ± 0.035
3.079IleLeu: 3.079 ± 0.052
0.58IleMet: 0.58 ± 0.024
1.331IleAsn: 1.331 ± 0.037
2.048IlePro: 2.048 ± 0.05
1.094IleGln: 1.094 ± 0.038
2.744IleArg: 2.744 ± 0.055
2.054IleSer: 2.054 ± 0.047
2.162IleThr: 2.162 ± 0.052
3.333IleVal: 3.333 ± 0.065
0.44IleTrp: 0.44 ± 0.02
0.914IleTyr: 0.914 ± 0.033
0.0IleXaa: 0.0 ± 0.0
Lys
3.647LysAla: 3.647 ± 0.064
0.151LysCys: 0.151 ± 0.01
1.517LysAsp: 1.517 ± 0.04
1.239LysGlu: 1.239 ± 0.039
0.81LysPhe: 0.81 ± 0.028
2.127LysGly: 2.127 ± 0.048
0.725LysHis: 0.725 ± 0.027
1.134LysIle: 1.134 ± 0.039
1.041LysLys: 1.041 ± 0.049
3.411LysLeu: 3.411 ± 0.069
0.586LysMet: 0.586 ± 0.026
0.765LysAsn: 0.765 ± 0.029
2.061LysPro: 2.061 ± 0.047
1.266LysGln: 1.266 ± 0.044
2.113LysArg: 2.113 ± 0.05
1.524LysSer: 1.524 ± 0.039
1.491LysThr: 1.491 ± 0.043
2.27LysVal: 2.27 ± 0.054
0.292LysTrp: 0.292 ± 0.017
0.677LysTyr: 0.677 ± 0.024
0.0LysXaa: 0.0 ± 0.0
Leu
16.313LeuAla: 16.313 ± 0.203
1.011LeuCys: 1.011 ± 0.03
6.809LeuAsp: 6.809 ± 0.097
5.098LeuGlu: 5.098 ± 0.095
3.478LeuPhe: 3.478 ± 0.061
9.233LeuGly: 9.233 ± 0.094
2.687LeuHis: 2.687 ± 0.052
4.063LeuIle: 4.063 ± 0.074
3.403LeuLys: 3.403 ± 0.059
13.009LeuLeu: 13.009 ± 0.186
2.094LeuMet: 2.094 ± 0.054
2.505LeuAsn: 2.505 ± 0.054
6.826LeuPro: 6.826 ± 0.098
4.15LeuGln: 4.15 ± 0.074
8.549LeuArg: 8.549 ± 0.103
5.57LeuSer: 5.57 ± 0.074
4.97LeuThr: 4.97 ± 0.074
7.708LeuVal: 7.708 ± 0.107
1.453LeuTrp: 1.453 ± 0.044
2.376LeuTyr: 2.376 ± 0.048
0.0LeuXaa: 0.0 ± 0.0
Met
2.628MetAla: 2.628 ± 0.048
0.145MetCys: 0.145 ± 0.012
1.089MetAsp: 1.089 ± 0.03
0.914MetGlu: 0.914 ± 0.03
0.633MetPhe: 0.633 ± 0.026
1.509MetGly: 1.509 ± 0.036
0.584MetHis: 0.584 ± 0.022
0.862MetIle: 0.862 ± 0.03
0.809MetLys: 0.809 ± 0.027
2.621MetLeu: 2.621 ± 0.051
0.442MetMet: 0.442 ± 0.022
0.778MetAsn: 0.778 ± 0.028
1.441MetPro: 1.441 ± 0.035
0.986MetGln: 0.986 ± 0.025
1.723MetArg: 1.723 ± 0.041
1.453MetSer: 1.453 ± 0.039
1.252MetThr: 1.252 ± 0.031
1.526MetVal: 1.526 ± 0.04
0.227MetTrp: 0.227 ± 0.017
0.388MetTyr: 0.388 ± 0.017
0.0MetXaa: 0.0 ± 0.0
Asn
3.135AsnAla: 3.135 ± 0.058
0.198AsnCys: 0.198 ± 0.012
1.444AsnAsp: 1.444 ± 0.054
1.14AsnGlu: 1.14 ± 0.033
0.854AsnPhe: 0.854 ± 0.032
2.434AsnGly: 2.434 ± 0.069
0.603AsnHis: 0.603 ± 0.023
1.114AsnIle: 1.114 ± 0.033
0.626AsnLys: 0.626 ± 0.023
2.705AsnLeu: 2.705 ± 0.059
0.481AsnMet: 0.481 ± 0.023
0.72AsnAsn: 0.72 ± 0.031
1.728AsnPro: 1.728 ± 0.042
0.849AsnGln: 0.849 ± 0.03
1.73AsnArg: 1.73 ± 0.04
1.121AsnSer: 1.121 ± 0.037
1.346AsnThr: 1.346 ± 0.042
1.858AsnVal: 1.858 ± 0.046
0.422AsnTrp: 0.422 ± 0.021
0.729AsnTyr: 0.729 ± 0.029
0.0AsnXaa: 0.0 ± 0.0
Pro
7.826ProAla: 7.826 ± 0.126
0.376ProCys: 0.376 ± 0.019
3.321ProAsp: 3.321 ± 0.058
2.871ProGlu: 2.871 ± 0.059
1.745ProPhe: 1.745 ± 0.044
4.796ProGly: 4.796 ± 0.071
1.203ProHis: 1.203 ± 0.034
1.835ProIle: 1.835 ± 0.044
1.394ProLys: 1.394 ± 0.041
5.595ProLeu: 5.595 ± 0.08
1.259ProMet: 1.259 ± 0.034
1.244ProAsn: 1.244 ± 0.035
3.146ProPro: 3.146 ± 0.079
2.114ProGln: 2.114 ± 0.044
3.486ProArg: 3.486 ± 0.062
2.628ProSer: 2.628 ± 0.053
2.423ProThr: 2.423 ± 0.047
4.163ProVal: 4.163 ± 0.071
0.888ProTrp: 0.888 ± 0.03
1.259ProTyr: 1.259 ± 0.033
0.0ProXaa: 0.0 ± 0.0
Gln
5.487GlnAla: 5.487 ± 0.082
0.264GlnCys: 0.264 ± 0.016
1.483GlnAsp: 1.483 ± 0.039
1.353GlnGlu: 1.353 ± 0.036
1.138GlnPhe: 1.138 ± 0.032
2.726GlnGly: 2.726 ± 0.05
1.087GlnHis: 1.087 ± 0.03
1.582GlnIle: 1.582 ± 0.04
0.931GlnLys: 0.931 ± 0.037
4.786GlnLeu: 4.786 ± 0.077
0.8GlnMet: 0.8 ± 0.028
0.778GlnAsn: 0.778 ± 0.033
2.345GlnPro: 2.345 ± 0.051
2.126GlnGln: 2.126 ± 0.047
3.668GlnArg: 3.668 ± 0.063
1.871GlnSer: 1.871 ± 0.044
1.598GlnThr: 1.598 ± 0.04
2.958GlnVal: 2.958 ± 0.053
0.589GlnTrp: 0.589 ± 0.021
0.813GlnTyr: 0.813 ± 0.031
0.0GlnXaa: 0.0 ± 0.0
Arg
8.328ArgAla: 8.328 ± 0.104
0.582ArgCys: 0.582 ± 0.029
4.186ArgAsp: 4.186 ± 0.072
4.525ArgGlu: 4.525 ± 0.069
2.735ArgPhe: 2.735 ± 0.044
5.381ArgGly: 5.381 ± 0.08
2.271ArgHis: 2.271 ± 0.044
3.719ArgIle: 3.719 ± 0.061
2.109ArgLys: 2.109 ± 0.042
8.782ArgLeu: 8.782 ± 0.117
1.848ArgMet: 1.848 ± 0.04
1.758ArgAsn: 1.758 ± 0.037
3.464ArgPro: 3.464 ± 0.06
3.164ArgGln: 3.164 ± 0.055
6.448ArgArg: 6.448 ± 0.1
3.556ArgSer: 3.556 ± 0.053
3.255ArgThr: 3.255 ± 0.052
5.213ArgVal: 5.213 ± 0.081
1.401ArgTrp: 1.401 ± 0.039
2.302ArgTyr: 2.302 ± 0.051
0.0ArgXaa: 0.0 ± 0.0
Ser
6.152SerAla: 6.152 ± 0.086
0.401SerCys: 0.401 ± 0.018
2.646SerAsp: 2.646 ± 0.054
2.268SerGlu: 2.268 ± 0.046
1.905SerPhe: 1.905 ± 0.043
5.075SerGly: 5.075 ± 0.09
1.255SerHis: 1.255 ± 0.036
2.158SerIle: 2.158 ± 0.039
1.372SerLys: 1.372 ± 0.042
5.448SerLeu: 5.448 ± 0.072
1.195SerMet: 1.195 ± 0.038
1.339SerAsn: 1.339 ± 0.04
2.716SerPro: 2.716 ± 0.049
1.643SerGln: 1.643 ± 0.043
3.513SerArg: 3.513 ± 0.058
2.83SerSer: 2.83 ± 0.062
2.619SerThr: 2.619 ± 0.057
3.748SerVal: 3.748 ± 0.063
0.828SerTrp: 0.828 ± 0.031
1.432SerTyr: 1.432 ± 0.042
0.0SerXaa: 0.0 ± 0.0
Thr
5.876ThrAla: 5.876 ± 0.081
0.406ThrCys: 0.406 ± 0.023
2.537ThrAsp: 2.537 ± 0.057
2.051ThrGlu: 2.051 ± 0.045
1.581ThrPhe: 1.581 ± 0.038
4.417ThrGly: 4.417 ± 0.07
1.118ThrHis: 1.118 ± 0.03
2.063ThrIle: 2.063 ± 0.049
1.039ThrLys: 1.039 ± 0.036
6.099ThrLeu: 6.099 ± 0.075
0.987ThrMet: 0.987 ± 0.031
1.039ThrAsn: 1.039 ± 0.039
3.251ThrPro: 3.251 ± 0.063
1.583ThrGln: 1.583 ± 0.043
3.505ThrArg: 3.505 ± 0.062
2.367ThrSer: 2.367 ± 0.059
2.564ThrThr: 2.564 ± 0.065
3.936ThrVal: 3.936 ± 0.074
0.644ThrTrp: 0.644 ± 0.025
1.059ThrTyr: 1.059 ± 0.043
0.0ThrXaa: 0.0 ± 0.0
Val
9.756ValAla: 9.756 ± 0.109
0.658ValCys: 0.658 ± 0.026
4.485ValAsp: 4.485 ± 0.067
3.98ValGlu: 3.98 ± 0.063
2.535ValPhe: 2.535 ± 0.049
5.551ValGly: 5.551 ± 0.086
1.687ValHis: 1.687 ± 0.04
3.315ValIle: 3.315 ± 0.055
1.992ValLys: 1.992 ± 0.052
8.588ValLeu: 8.588 ± 0.098
1.543ValMet: 1.543 ± 0.04
2.006ValAsn: 2.006 ± 0.048
3.878ValPro: 3.878 ± 0.065
2.59ValGln: 2.59 ± 0.052
5.189ValArg: 5.189 ± 0.074
3.922ValSer: 3.922 ± 0.072
3.74ValThr: 3.74 ± 0.069
5.851ValVal: 5.851 ± 0.093
0.884ValTrp: 0.884 ± 0.028
1.665ValTyr: 1.665 ± 0.039
0.0ValXaa: 0.0 ± 0.0
Trp
1.321TrpAla: 1.321 ± 0.039
0.162TrpCys: 0.162 ± 0.012
0.669TrpAsp: 0.669 ± 0.024
0.492TrpGlu: 0.492 ± 0.019
0.624TrpPhe: 0.624 ± 0.027
0.91TrpGly: 0.91 ± 0.03
0.448TrpHis: 0.448 ± 0.021
0.681TrpIle: 0.681 ± 0.023
0.471TrpLys: 0.471 ± 0.02
2.362TrpLeu: 2.362 ± 0.057
0.382TrpMet: 0.382 ± 0.018
0.542TrpAsn: 0.542 ± 0.022
0.786TrpPro: 0.786 ± 0.033
0.895TrpGln: 0.895 ± 0.031
1.407TrpArg: 1.407 ± 0.044
0.885TrpSer: 0.885 ± 0.031
0.731TrpThr: 0.731 ± 0.028
0.963TrpVal: 0.963 ± 0.03
0.31TrpTrp: 0.31 ± 0.018
0.389TrpTyr: 0.389 ± 0.021
0.0TrpXaa: 0.0 ± 0.0
Tyr
3.15TyrAla: 3.15 ± 0.056
0.232TyrCys: 0.232 ± 0.015
1.44TyrAsp: 1.44 ± 0.039
1.151TyrGlu: 1.151 ± 0.034
0.951TyrPhe: 0.951 ± 0.032
2.287TyrGly: 2.287 ± 0.05
0.566TyrHis: 0.566 ± 0.023
0.806TyrIle: 0.806 ± 0.029
0.6TyrLys: 0.6 ± 0.023
2.676TyrLeu: 2.676 ± 0.056
0.405TyrMet: 0.405 ± 0.02
0.663TyrAsn: 0.663 ± 0.028
1.247TyrPro: 1.247 ± 0.039
0.968TyrGln: 0.968 ± 0.031
2.15TyrArg: 2.15 ± 0.046
1.197TyrSer: 1.197 ± 0.037
1.201TyrThr: 1.201 ± 0.036
1.822TyrVal: 1.822 ± 0.042
0.397TyrTrp: 0.397 ± 0.017
0.674TyrTyr: 0.674 ± 0.027
0.0TyrXaa: 0.0 ± 0.0
Xaa
0.0XaaAla: 0.0 ± 0.0
0.0XaaCys: 0.0 ± 0.0
0.0XaaAsp: 0.0 ± 0.0
0.0XaaGlu: 0.0 ± 0.0
0.0XaaPhe: 0.0 ± 0.0
0.0XaaGly: 0.0 ± 0.0
0.0XaaHis: 0.0 ± 0.0
0.0XaaIle: 0.0 ± 0.0
0.0XaaLys: 0.0 ± 0.0
0.0XaaLeu: 0.0 ± 0.0
0.0XaaMet: 0.0 ± 0.0
0.0XaaAsn: 0.0 ± 0.0
0.0XaaPro: 0.0 ± 0.0
0.0XaaGln: 0.0 ± 0.0
0.0XaaArg: 0.0 ± 0.0
0.0XaaSer: 0.0 ± 0.0
0.0XaaThr: 0.0 ± 0.0
0.0XaaVal: 0.0 ± 0.0
0.0XaaTrp: 0.0 ± 0.0
0.0XaaTyr: 0.0 ± 0.0
0.0XaaXaa: 0.0 ± 0.0
Statistics based on 3386 proteins (1116988 amino acids)

Note: The error has been estimated with the bootstraping (x100) at the protein level

Above dipeptide statistics (among other stats for this proteome) you can download from this CSV file
See this proteome in: uniprot_link
Proteome-pI is available under Creative Commons Attribution-NoDerivs license, for more details see here

Reference: Kozlowski LP. Proteome-pI 2.0: Proteome Isoelectric Point Database Update. Nucleic Acids Res. 2021, doi: 10.1093/nar/gkab944 Contact: Lukasz P. Kozlowski